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ZC63A Magnesium vs. Grey Cast Iron

ZC63A magnesium belongs to the magnesium alloys classification, while grey cast iron belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ZC63A magnesium and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 48
180
Elongation at Break, % 3.3
9.6
Fatigue Strength, MPa 94
69 to 170
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
69
Shear Strength, MPa 130
180 to 610
Tensile Strength: Ultimate (UTS), MPa 220
160 to 450
Tensile Strength: Yield (Proof), MPa 130
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Melting Completion (Liquidus), °C 550
1380
Melting Onset (Solidus), °C 470
1180
Specific Heat Capacity, J/kg-K 950
490
Thermal Conductivity, W/m-K 120
46
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.9
Density, g/cm3 2.1
7.5
Embodied Carbon, kg CO2/kg material 22
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 920
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 190
27 to 240
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 29
5.8 to 17
Strength to Weight: Bending, points 38
8.7 to 17
Thermal Diffusivity, mm2/s 58
13
Thermal Shock Resistance, points 12
6.0 to 17

Alloy Composition


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Carbon (C), % 0
3.1 to 3.4
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0
92.1 to 93.9
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.5 to 0.7
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.9
Silicon (Si), % 0 to 0.2
2.5 to 2.8
Sulfur (S), % 0
0 to 0.15
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.3
0